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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
18/04/2023 |
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Data da última atualização: |
12/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MALAFATTI, J. O. D.; TAVARES, F. A.; NEVES, T. R.; MASCARENHAS, B. C.; QUARANTA, S.; PARIS, E. C. |
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Afiliação: |
ELAINE CRISTINA PARIS, CNPDIA. |
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Título: |
Modified Silica Nanoparticles from Rice Husk Supported on Polylactic Acid as Adsorptive Membranes for Dye Removal. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Materials, v, 16, n. 6, 2429, 2023. |
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Páginas: |
18 p. |
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DOI: |
https://doi.org/10.3390/ma16062429 |
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Idioma: |
Inglês |
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Conteúdo: |
Industrial effluents and wastewater treatment have been a mainstay of environmental preservation and remediation for the last decade. Silica nanoparticles (SiO2) obtained from rice husk (RH) are an alternative to producing low-cost adsorbent and agriculture waste recovery. One adsorption challenge is facilitating the adsorbate separation and reuse cycle from aqueous medium. Thus, the present work employs SiO2 supported on polylactic acid (PLA) nanofibers obtained by the electrospinning method for Rhodamine B (RhB) dye adsorption. The silica surface was modified with trimethylsilyl chloride (TMCS) to increase affinity towards organic compounds. As a result, the silanized surface of the silica from rice husk (RHSil) promoted an increase in dye adsorption attributed to the hydrophobic properties. The PLA fibers containing 40% SiO2 (w w−1 ) showed about 85?95% capacity adsorption. The pseudo-first-order kinetic model was demonstrated to be the best model for PLA:SiO2 RHSil nanocomposites, exhibiting a 1.2956 mg g−1 adsorption capacity and 0.01404 min−1 kinetic constant (k1 ) value. In the reuse assay, PLA:SiO2 membranes preserved their adsorption activity after three consecutive adsorption cycles, with a value superior to 60%. Therefore, PLA:SiO2 nanocomposites from agricultural waste are an alternative to ?low-cost/lowend? treatments and can be used in traditional treatment systems to improve dye removal from contaminated waters. |
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Palavras-Chave: |
Electrospinning; PLA; Rice husk; Silica nanoparticles. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1153225/1/P-Modified-Silica-Nanoparticles-from-Rice-Husk-Supported-on.pdf
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Marc: |
LEADER 02216naa a2200253 a 4500
001 2153225
005 2024-01-12
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3390/ma16062429$2DOI
100 1 $aMALAFATTI, J. O. D.
245 $aModified Silica Nanoparticles from Rice Husk Supported on Polylactic Acid as Adsorptive Membranes for Dye Removal.$h[electronic resource]
260 $c2023
300 $a18 p.
520 $aIndustrial effluents and wastewater treatment have been a mainstay of environmental preservation and remediation for the last decade. Silica nanoparticles (SiO2) obtained from rice husk (RH) are an alternative to producing low-cost adsorbent and agriculture waste recovery. One adsorption challenge is facilitating the adsorbate separation and reuse cycle from aqueous medium. Thus, the present work employs SiO2 supported on polylactic acid (PLA) nanofibers obtained by the electrospinning method for Rhodamine B (RhB) dye adsorption. The silica surface was modified with trimethylsilyl chloride (TMCS) to increase affinity towards organic compounds. As a result, the silanized surface of the silica from rice husk (RHSil) promoted an increase in dye adsorption attributed to the hydrophobic properties. The PLA fibers containing 40% SiO2 (w w−1 ) showed about 85?95% capacity adsorption. The pseudo-first-order kinetic model was demonstrated to be the best model for PLA:SiO2 RHSil nanocomposites, exhibiting a 1.2956 mg g−1 adsorption capacity and 0.01404 min−1 kinetic constant (k1 ) value. In the reuse assay, PLA:SiO2 membranes preserved their adsorption activity after three consecutive adsorption cycles, with a value superior to 60%. Therefore, PLA:SiO2 nanocomposites from agricultural waste are an alternative to ?low-cost/lowend? treatments and can be used in traditional treatment systems to improve dye removal from contaminated waters.
653 $aElectrospinning
653 $aPLA
653 $aRice husk
653 $aSilica nanoparticles
700 1 $aTAVARES, F. A.
700 1 $aNEVES, T. R.
700 1 $aMASCARENHAS, B. C.
700 1 $aQUARANTA, S.
700 1 $aPARIS, E. C.
773 $tMaterials, v, 16$gn. 6, 2429, 2023.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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Registro |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Recursos Genéticos e Biotecnologia. Para informações adicionais entre em contato com cenargen.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
08/05/1997 |
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Data da última atualização: |
22/10/2008 |
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Autoria: |
DONADIO, L. C.; FERREIRA, F. R.; SOARES, N. B.; RIBEIRO, I. J. A. |
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Afiliação: |
EMBRAPA-CENARGEN. |
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Título: |
Variedades brasileiras de manga. |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
Sao Paulo: Fundacao Ed. da UNESP, 1996. |
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Páginas: |
74p. |
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Idioma: |
Português |
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Palavras-Chave: |
Brasil; Variety. |
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Thesagro: |
Manga; Variedade. |
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Thesaurus NAL: |
Brazil. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00492nam a2200205 a 4500
001 1171163
005 2008-10-22
008 1996 bl uuuu 00u1 u #d
100 1 $aDONADIO, L. C.
245 $aVariedades brasileiras de manga.
260 $aSao Paulo: Fundacao Ed. da UNESP$c1996
300 $a74p.
650 $aBrazil
650 $aManga
650 $aVariedade
653 $aBrasil
653 $aVariety
700 1 $aFERREIRA, F. R.
700 1 $aSOARES, N. B.
700 1 $aRIBEIRO, I. J. A.
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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